Easy to use and reliable, this adjustable clamp attaches to a table edge with rubber-coated prongs for a secure grip on irregular shapes. Built from zinc alloy, it offers durability and long-lasting performance when holding flasks, beakers, and crucibles during scientific work. Durable material Constructed from high quality zinc alloy for long service life, making it suitable for routine lab use in holding flasks, beakers, and crucibles during experiments. Versatile design The large, user friendly three jaw clamp is lightweight and reduces the risk of injury during laboratory tasks. The adjustable feature securely accommodates objects of different shapes and sizes. Quick and efficient Designed for fast, secure clamping of bottles and vessels with varying specifications, making it an essential component of laboratory equipment. Use scenarios - Secure tall beakers or cylindrical vessels during heating or reaction monitoring. - Stabilize crucibles or cups on a bench during measurement, pouring, or observation. - Clamp reagent bottles of different shapes during setup or titration. Specifications and compatibility Zinc alloy construction with rubber coated gripping prongs. Three jaw clamp design with table edge mounting and adjustable capability to hold a range of shapes and sizes.